1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+)

1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+)

We present a measurement of GAMMA(D(s)+ --> mu+nu)/GAMMA(D(s)+ --> phipi+) = 0.245 +/- 0.052 +/- 0.074. Using this ratio and B(D(s)+ --> phipi+)=(3.7 +/- 0.9)% we extract f(Ds)=344 +/- 37 +/- 52 +/-42 MeV, where the last error is due to the uncertainty in the D(s)+ --> phipi+ absolute br...

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Bibliographic Details
Main Authors: D. Acosta et al., THULASIDAS, M.
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 1994
Subjects:
Physics
Online Access:https://ink.library.smu.edu.sg/sis_research/3462
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Institution: Singapore Management University
Language: English
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Summary:We present a measurement of GAMMA(D(s)+ --> mu+nu)/GAMMA(D(s)+ --> phipi+) = 0.245 +/- 0.052 +/- 0.074. Using this ratio and B(D(s)+ --> phipi+)=(3.7 +/- 0.9)% we extract f(Ds)=344 +/- 37 +/- 52 +/-42 MeV, where the last error is due to the uncertainty in the D(s)+ --> phipi+ absolute branching ratio. This result is larger than most theoretical predictions.

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